Letters that make frontal sinus
s, a, o, f, l, n, r, t, i, u are letters that make 'frontal sinus'
Words within frontal sinus
frontal, front, sinus, si, Ron, NT, nu, Ro, SI, on, in, sin, US, AL, IN, Sin, Al, Fr, In, Si, Ta are words within 'frontal sinus'